49.8% is the change from 502 to 752
Calculation steps:
[( 752 - 502 ) ÷ 502] x 100 = 49.8%
Formula
Percentage change = [(752 - 502) / 502] x 100
Subtract the new number by the original number
752 - 502 = 250
250 ÷ 502 = 0.49800796812749004
0.49800796812749004 x 100 = 49.8%